1. Exceptional Mechanical Strength thiab Hardness
Tensile zog: Annealed C51000 muaj lub zog tensile ntawm ~ 415 MPa, uas tuaj yeem ncav cuag 700-800 MPa tom qab ua haujlwm txias (piv txwv li, 50% txias txo). Qhov no yog qhov siab tshaj tooj dag (C26000: ~ 345 MPa, annealed) thiab piv rau 304 stainless hlau (~ 515 MPa, annealed).
Hardness: Annealed C51000 muaj Brinell hardness (HB) ntawm ~ 110, nce mus rau HB 200-240 tom qab ua haujlwm txias. Qhov sib ntxiv ntawm tin (Sn) solidifies lub tooj liab matrix, thaum phosphorus (P) refines lub grain qauv, pab txhawb ob lub zog thiab hardness yam tsis muaj kev cuam tshuam ductility.
Kev qaug zog: Kev tiv thaiv zoo heev rau kev thauj khoom cyclic, ua rau nws zoo tagnrho rau siab - kev ntxhov siab, rov ua dua - cov khoom siv txav (xws li, springs, washers, hluav taws xob tiv tauj) uas yuav tsum tau muaj kev cia siab ntev -.
2. Superior Wear Resistance thiab Tribological Performance
Lubrication compatibility: Cov hlau nplaum lub microstructure (zoo-grained Cu-Sn cov tshuaj tov nrog phosphide precipitates) ua rau nws tsim ib qho chaw ruaj khov, qis-kev sib txhuam nto zaj duab xis thaum ua ke nrog cov roj nplua nyeem (piv txwv li, roj, roj) lossis txawm tias qhuav - ua haujlwm rau lub sijhawm luv.
Hnav tsis kam: Ua tau zoo tshaj plaws tooj dag, tooj liab ntshiab, thiab ntau yam txhuas alloys hauv qhov chaw abrasive lossis zawv zawg. Phosphorus (P) tsim cov tawv tooj liab phosphide (Cu₃P) cov khoom uas ua raws li kev hnav khaub ncaws sab hauv, txo cov khoom poob thaum sib cuag.
Cov khoom siv bearing: Excels ua cov khoom siv rau qis-rau- nruab nrab ceev, siab-load daim ntawv thov (xws li, bushings, thrust washers, iav hniav) vim nws muaj peev xwm nqus tau poob siab thiab faib cov khoom sib npaug, txo qhov kev puas tsuaj ntawm qhov chaw.
3. Zoo heev Corrosion Resistance
Atmospheric corrosion: Forms a dense, adherent oxide film (patina) that protects the underlying metal from moisture, pollutants, and salt spray. Nws ua tau zoo tshwj xeeb hauv cov ntug dej hiav txwv, kev lag luam, thiab cov huab cua ntub dej, ua kom tooj dag nyob rau hauv cov huab cua corrosive.
Aqueous corrosion: Resistant corrosion nyob rau hauv dej tshiab, dej hiav txwv, thiab cov tshuaj me me (xws li, dilute acids, alkalis, thiab organic solvents). Nws muaj kev tiv thaiv rau dezincification (ib hom tsis ua hauj lwm hauv tooj dag) thiab pitting corrosion nyob rau hauv feem ntau cov kev pab cuam.
Biofouling kuj: Copper ions tso tawm los ntawm cov alloy inhibit qhov kev loj hlob ntawm cov kab mob marine (xws li barnacles, algae), ua rau nws tsim nyog rau marine bearings, nkoj propeller shafts, thiab underwater Cheebtsam.
4. Zoo hluav taws xob thiab thermal conductivity
Hluav taws xob conductivity: ~ 20–25% IACS (International Annealed Copper Standard), uas yog siab tshaj feem ntau stainless hlau (304 SS: ~ 2% IACS) thiab ntau bronze alloys. Qhov no ua rau nws tsim nyog rau kev sib cuag hluav taws xob, hloov pauv, thiab cov khoom sib txuas uas xav tau ob qho tib si conductivity thiab mechanical zog.
Thermal conductivity: ~ 59 W / m·K (annealed), ua kom muaj cua sov zoo hauv cov khoom xws li cov dab dej kub, cov khoom siv hluav taws xob, thiab cov khoom siv tsheb.
5. Zoo heev Formability thiab Machinability
Formability: tuaj yeem ua tau txias- ua haujlwm (dov, kos, khoov, stamped) rau hauv cov duab zoo sib xws nrog kev ua siab ntev. Nws khaws cov ductility txawm tias tom qab ua haujlwm txias txias, txo qhov kev pheej hmoo ntawm kev tawg thaum tsim khoom.
Machineability: Tus nqi ntawm ~ 60% piv rau dawb- txiav tooj dag (C36000: 100%), tab sis tseem ua tau zoo nrog cov cuab yeej tsim nyog (piv txwv li, cov cuab yeej carbide) thiab cov cuab yeej txiav. Nws tsim cov chips luv, tswj tau, txo cov cuab yeej hnav thiab txhim kho qhov chaw tiav.
Castability: tuaj yeem yog xuab zeb- nrum, tuag- nrum, lossis centrifugally cam khwb cia rau hauv ze -net- cov khoom zoo (piv txwv li, li qub, fittings, thiab cov khoom siv tshuab), txo cov nqi xa tawm - cov nqi ua haujlwm.
6. Ductility thiab Toughness
Elongation: ~ 30% (annealed), uas txo qis rau ~ 5-10% tom qab hnyav ua haujlwm txias tab sis tseem txaus rau feem ntau cov ntawv thov.
Toughness: Kev ua haujlwm siab rau cov pob txha tawg, txawm tias qhov kub thiab txias, ua rau nws tsim nyog rau cov khoom siv cryogenic lossis huab cua huab cua (xws li cov khoom siv hauv aerospace, cov tshuab ua haujlwm).
7. Tsis yog-Magnetic and Spark-Resistant Properties
Tsis yog -magnetic: Khaws cov khoom tsis yog- sib nqus hauv txhua lub xeev (annealed, txias- ua haujlwm), ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau kev sib nqus nruab nrab (xws li, cov khoom siv MRI, aerospace sensors, thiab cov khoom siv hluav taws xob).
Spark -resistant: Tsis tsim cov nplaim taws thaum ntaus, txhim kho kev nyab xeeb hauv qhov chaw tawg lossis hluav taws kub (xws li, roj refineries, tshuaj nroj tsuag, thiab cov khoom siv mining).
8. Compatibility nrog Soldering thiab Brazing
Daim ntawv thov tseem ceeb rau C51000 Phosphor Bronze
Hluav taws xob engineering: Hluav taws xob tiv tauj, keyboards, relays, connectors, thiab caij nplooj ntoos hlav washers (combines conductivity, zog, thiab corrosion kuj).
Mechanical engineering: Bearings, bushings, gears, shafts, and thrust washers (zoo heev hnav tsis kam thiab load-cov kabmob muaj peev xwm).
Aerospace thiab automotive: Cov khoom siv hauv av tsaws, lub valve stems, sensor vaj tse, thiab cav qhov chaw (siab zog, qaug zog, thiab corrosion kuj).
Kev lag luam marine: Nkoj propeller shafts, marine bearings, thiab underwater fasteners (resist seawater corrosion thiab biofouling).
Cov cuab yeej siv tshuab: Hydraulic li qub, twj tso kua mis, thiab compressor qhov chaw (hnav tsis kam thiab compatibility nrog lubricants).
